fac rules e-mar13

R u l e s f o r B u i l d i n g a n d C l a s s i n g F a c i l i t i e s o n O f f s h o r e I n s t a l l a t i o n s

RULES FOR BUILDING AND CLASSING

FACILITIES ON OFFSHORE INSTALLATIONS

JULY 2012 (Updated March 2013 see next page)

American Bureau of Shipping Incorporated by Act of Legislature of the State of New York 1862

Copyright 2012 American Bureau of Shipping ABS Plaza 16855 Northchase Drive Houston, TX 77060 USA

Updates

March 2013 consolidation includes: July 2012 version plus Corrigenda/Editorials

ABS RULES FOR BUILDING AND CLASSING FACILITIES ON OFFSHORE INSTALLATIONS . 2012 iii

F o r e w o r d

Foreword These Rules contain the technical requirements and criteria employed by ABS in the review and survey of hydrocarbon production facilities that are being considered for Classification and for maintenance of Classification. It is applicable to Hydrocarbon Production and Processing Systems and associated utility and safety systems located on fixed (bottom-founded) offshore structures of various types. It also applies to systems installed on floating installations such as ships shape based FPSOs, tension leg platforms, spars, semisubmersibles, etc.

There are differences in the practices adopted by the designers of fixed and floating installations. Some of these differences are due to physical limitations inherent in the construction of facilities on new or converted floating installations. Recognizing these differences, the requirements for facilities on fixed and floating installations are specified in separate chapters. Chapter 3 covers requirements for facilities on floating installations and Chapter 4 covers requirements for facilities on fixed installations.

Facilities designed, constructed, and installed in accordance with the requirements of these Rules on an ABS classed fixed or floating offshore structure, under ABS review and survey, will be classed and identified in the Record by an appropriate classification notation as defined herein.

These Rules have been written for world-wide application and as such, compliance with individual requirements may require comprehensive data, analyses and plans to be submitted to demonstrate the adequacy of the facility. ABS acknowledges that there is a wide range of documents that may be required for submittal to satisfy these Rules. It is not the intention of these Rules to impose requirements or practices in addition to those that have previously proven satisfactory in similar situations.

Design and installation requirements presented in these Rules are based on existing methodologies and attendant safety factors that are deemed to provide an adequate level of safety. Primarily, the use of such methods and limits in these Rules reflects what is considered to be the current state of practice in the design and installation of offshore facilities. The application of these Rules by ABS will not seek to inhibit the use of any technological approach that can be shown to produce an acceptable level of safety.

These Rules are applicable to the classification of facilities for which applications, or contracts for classification, are received on or after 1 July 2012. These Rules supersede the Guide for Building and Classing Facilities on Offshore Installations 2009.

Changes to Conditions of Classification (1 January 2008) For the 2008 edition, Chapter 1, Scope and Conditions of Classification was consolidated into a generic booklet, entitled Rules for Conditions of Classification Offshore Units and Structures (Part 1) for all units, installations, vessels or systems in offshore service. The purpose of this consolidation was to emphasize the common applicability of the classification requirements in Chapter 1 to ABS-classed offshore units, pipelines, risers, and other offshore structures, and thereby make Conditions of Classification more readily a common Rule of the various ABS Rules and Guides, as appropriate.

Thus, Chapter 1 of these Rules specifies only the unique requirements applicable to facilities on offshore installations. These supplemental requirements are always to be used with the aforementioned Rules for Conditions of Classification Offshore Units and Structures (Part 1).

iv ABS RULES FOR BUILDING AND CLASSING FACILITIES ON OFFSHORE INSTALLATIONS . 2012

T a b l e o f C o n t e n t s

RULES FOR BUILDING AND CLASSING

FACILITIES ON OFFSHORE INSTALLATIONS

CONTENTS CHAPTER 1 Scope and Conditions of Classification (Supplement to the ABS

Rules for Conditions of Classification Offshore Units and Structures) .............................................................................................. 1 Section 1 Classification .......................................................................... 2 Section 2 Application, System Classification Boundaries, Symbols

and Notations ......................................................................... 3 Section 3 Rules for Classification .......................................................... 6 Section 4 Recognition of Risk Based Techniques to Justify

Alternatives ............................................................................ 7 Section 5 Submission of Plans, Data and Calculations ....................... 10 [See also separately published booklet ABS Rules for Conditions of Classification Offshore Units and Structures (Part 1)]

CHAPTER 2 Definitions, References, Acronyms and Abbreviations .................... 11

Section 1 Definitions ............................................................................ 12 Section 2 References ........................................................................... 17 Section 3 Acronyms and Abbreviations ............................................... 18

CHAPTER 3 Floating Installations ............................................................................ 19

Section 1 General ................................................................................ 28 Section 2 Design Plans and Data ........................................................ 30 Section 3 Hydrocarbon Production and Process Systems .................. 46 Section 4 Process Support Systems .................................................... 63 Section 5 Marine Support Systems ...................................................... 71 Section 6 Electrical Systems ................................................................ 74 Section 7 Instrumentation & Control Systems ..................................... 91 Section 8 Fire Protection and Personnel Safety ................................ 100

CHAPTER 4 Fixed Installations .............................................................................. 124

Section 1 General .............................................................................. 129 Section 2 Plans and Particulars to be Submitted ............................... 131 Section 3 Hydrocarbon Production and Process Systems ................ 147 Section 4 Process and Platform Support Systems ............................ 148 Section 5 ................................................... 152

ABS RULES FOR BUILDING AND CLASSING FACILITIES ON OFFSHORE INSTALLATIONS . 2012 v

Section 6 Electrical Systems .............................................................. 153 Section 7 Instrumentation & Control Systems ................................... 155 Section 8 Fire Protection and Personnel Safety ................................ 156

CHAPTER 5 Surveys ............................................................................................... 184

Section 1 Surveys During Construction and Commissioning ............ 186 Section 2 Surveys for Maintenance of Class ..................................... 195 Section 3 Risk Based Surveys for Maintenance of Class .................. 198

APPENDIX 1 Plastic Pipe Installations ................................................................... 201

Section 1 General .............................................................................. 204 Section 2 Design ................................................................................ 205 Section 3 Installation of Plastic Pipes ................................................ 210 Section 4 Manufacturing of Plastic Pipes .......................................... 213 Section 5 Plastic Pipe Bonding Procedure Qualification ................... 214 Section 6 Tests by the Manufacturer Fire Endurance Testing of

Plastic Piping in Dry Condition (For Level 1 and Level 2) ................................................... 215

Section 7 Tests by the Manufacturer Fire Endurance Testing of Water-filled Plastic Piping (For Level 3) ............................. 217

Section 8 Tests by the Manufacturer Fire Endurance Testing of Plastic Piping Used in Deluge System (For Level 3 Modified Test Level 3 WD) (Adopted from USCG PFM 1-98) .......................................................................... 220

Section 9 Tests by the Manufacturer Flame Spread ...................... 221 Section 10 Testing on Board After Installation ..................................... 222

APPENDIX 2 Fire Tests for Non-metallic Hoses .................................................... 223 APPENDIX 3 Fiber Reinforced Plastic (FRP) Gratings .......................................... 225 APPENDIX 4 References, Codes and Standards ................................................... 231 APPENDIX 5 Systems Requirements for Floating Installations ........................... 234

This Page Intentionally Left Blank

ABS RULES FOR BUILDING AND CLASSING FACILITIES ON OFFSHORE INSTALLATIONS . 2012 1

Chapter 1: Scope and Conditions of Classification (Supplement to the ABS Rules for Conditions of Classification Offshore Units and Structures)

C H A P T E R 1 Scope and Conditions of Classification (Supplement to the ABS Rules for Conditions of Classification Offshore Units and Structures)

CONTENTS SECTION 1 Classification .......................................................................................... 2 SECTION 2 Application, System Classification Boundaries, Symbols, and

Notations ................................................................................................. 3 1 Scope .................................................................................................. 3 3 Classification Boundaries .................................................................... 4 5 Classification Symbols ........................................................................ 4

5.1 Floating Installations ........................................................................ 4 5.3 Fixed Installations ............................................................................ 4

7 Systems not Built Under Survey ......................................................... 4 9 Conversion of Existing Vessels .......................................................... 5 11 Conversion of Existing Structures ....................................................... 5

SECTION 3 Rules for Classification ......................................................................... 6

1 Application .......................................................................................... 6 SECTION 4 Recognition of Risk Based Techniques to Justify Alternatives ......... 7

1 General ............................................................................................... 7 3 Application .......................................................................................... 7 5 Submittals ........................................................................................... 8 7 Risk Evaluation Methodology ............................................................. 8 9 Identification of Hazards ..................................................................... 8 11 Other Requirements ............................................................................ 9

SECTION 5 Submission of Plans, Data, and Calculations .................................... 10

2 ABS RULES FOR BUILDING AND CLASSING FACILITIES ON OFFSHORE INSTALLATIONS . 2012

S e c t i o n 1 : C l a s s i f i c a t i o n

C H A P T E R 1 Scope and Conditions of Classification

S E C T I O N 1 Classification (1 January 2008)

The requirements for conditions of classification are contained in the separate, generic ABS Rules for Conditions of Classification Offshore Units and Structures (Part 1).

Additional requirements specific to facilities on offshore installations are contained in the following Sections.


Sec t ion 2 : App l i ca t ion , Sys tem Class i f i ca t i on Boundar ies , Symbols and Nota t i ons


S E C T I O N 2 Application, System Classification Boundaries, Symbols, and Notations (1 January 2008)

A listing of Classification Symbols and Notations available to the Owners of vessels, offshore drilling and production units and other marine structures and systems, List of ABS Notations and Symbols is available from the ABS website http://www.eagle.org.

The following classification boundaries, symbols and notations are specific to facilities on offshore installations.

1 Scope (1 July 2012) The requirements in the Rules are applicable to hydrocarbon production and/or processing facilities located on floating or fixed offshore installations, and apply to the following systems and associated equipment:

Hydrocarbon Production Hydrocarbon Processing Process Support Process Control Marine Support Electrical Instrumentation and Control Fire Protection and Personnel Safety The following ABS Rules and Guide, latest edition, are applicable as referenced therein for systems or services other than for the hydrocarbon production and processing facilities.

i) FPI Rules ABS Rules for Building and Classing Floating Production Installations

ii) Offshore Installations Rules ABS Rules for Building and Classing Offshore Installations

iii) Steel Vessel Rules ABS Rules for Building and Classing Steel Vessels

iv) MODU Rules ABS Rules for Building and Classing Mobile Offshore Drilling Units

Appropriate flag state and port state authorities are to be consulted for their specific requirements.

Chapter 2 provides definitions, references, abbreviations and acronyms associated with these Rules. Chapter 3 covers requirements for hydrocarbon production and processing facilities on floating

installations.

Chapter 4 covers requirements for hydrocarbon production and processing facilities on fixed installations. Chapter 5 covers requirements for survey during and after construction.

Chapter 1 Scope and Condition of Classification Section 2 Application, System Classification Boundaries, Symbols and Notations 1-2


3 Classification Boundaries (1 July 2012) The boundaries for classification where a hydrocarbon production and/or processing facility is installed on an offshore installation are defined to include the following major items:

i) For floating installations:

a) Vessel, including hull structure, equipment, and marine machinery, subject to the requirements of the FPI Rules.

b) Position Mooring System, according to the requirements of the FPI Rules.

c) Hydrocarbon Production and/or Processing Facilities (topside), according to the requirements of these Rules.

ii) For fixed installations:

a) Structure, subject to the requirements of the ABS Rules for Building and Classing Offshore Installations (OI Rules).

b) Hydrocarbon Production and/or Processing Facilities (topside), according to the requirements of these Rules.

iii) Classification of additional equipment and systems can be provided if requested by the owner.

5 Classification Symbols

5.1 Floating Installations For floating installations, systems which have been designed, built, installed, and commissioned in accordance with approved plans to the satisfaction of the ABS Surveyors, and which are deemed to meet the full requirements of the applicable ABS Rules and Guides, or their equivalent, where approved by the Committee, for service in specified design environmental conditions, will be classed and distinguished in the ABS Record by the symbols A1 followed by the appropriate notation for the systems intended service. Floating Production, Storage and Offloading System (FPSO) Floating Production (and Offloading) System (FPS) Floating Storage and Offloading System (FSO)

5.3 Fixed Installations For fixed installations, systems which have been designed, built, installed, and commissioned in accordance with approved plans to the satisfaction of the ABS surveyors, and which are deemed to meet the full requirements of the applicable ABS Rules and Guides, or their equivalent, where approved by the Committee for service in specified design environmental conditions, will be classed and distinguished in the ABS Record by the symbols A1 followed by the appropriate notation for the systems intended service: Offshore Installation Hydrocarbon Processing Offshore Installation Hydrocarbon Production Note: The mark (Maltese Cross) signifies that the system was built, installed, and commissioned to

the satisfaction of the ABS Surveyors.

7 Systems not Built Under Survey Installations which have not been built under ABSs survey, but which are submitted for classification, will be subject to design review and a special classification survey.

Where found satisfactory and thereafter approved by the Committee, they will be classed and distinguished in the Record by the symbols and special notations described above, but the mark signifying survey during construction will be omitted.

Chapter 1 Scope and Condition of Classification Section 2 Application, System Classification Boundaries, Symbols and Notations 1-2


9 Conversion of Existing Vessels Modifications of existing floating structures intended for classification as Floating Installations are required to be converted under ABS design review and survey.

11 Conversion of Existing Structures Modifications of existing structures intended for classification as Fixed Installations are required to be converted under ABS design review and survey.


S e c t i o n 3 : R u l e s f o r C l a s s i f i c a t i o n


S E C T I O N 3 Rules for Classification (1 July 2012)

1 Application These requirements are applicable to features that are permanent in nature and can be verified by plan review, calculation, physical survey or other appropriate means. Any statement in the Rules regarding other features is to be considered as guidance to the designer, builder, owner, etc.


S e c t i o n 4 : R e c o g n i t i o n o f R i s k B a s e d T e c h n i q u e s t o J u s t i f y A l t e r n a t i v e s


S E C T I O N 4 Recognition of Risk Based Techniques to Justify Alternatives

1 General (1 July 2012) The requirements detailed herein provide an alternative route for an owner to obtain and maintain ABS Class. Any alternatives to the requirements of these Rules may be specially considered by ABS on the basis of a risk assessment submitted for review.

i) In case of such alternatives, ABS approval will be contingent upon a demonstration of fitness for purpose and equivalent level of safety in accordance with the principles of ABS Guides and Rules, as well as recognized codes and standards.

ii) Risk acceptance criteria are to be developed in line with the principles of the ABS Rules and will be subject to ABS approval. In instances where a direct alternative recognized code or standard is used, ABS verification of compliance with the standard will be considered demonstration of fitness for purpose.

iii) The ABS publication, Guidance Notes on Risk Assessment Application for the Marine and Offshore Oil and Gas Industries, provides an overview of risk assessment techniques and additional information.

3 Application (1 July 2012) A risk-based approach may be applicable either to the installation as a whole or to individual systems, subsystems, equipment or components.

i) The boundaries of the components and systems of the installation to which a risk-based assessment is applied are to be logical.

ii) As appropriate, account must be given to remote hazards outside the bounds of the system under consideration. Such account is to include incidents relating to remote hazards impacting on or being influenced by the system under consideration.

iii) ABS will consider the application of risk-based techniques in the design of the installation, surveys during construction, and surveys for maintenance of class.

iv) Portions of the installation not included in the risk assessment are to comply with the applicable parts of the ABS Rules and Guides.

v) The following are the responsibility of the owner/operator:

a) Proposed risk acceptance criteria

b) Hazard identification

c) Risk assessment

d) Risk mitigation and management

e) Compliance of the system under consideration with the applicable requirements of Flag and Coastal State

Chapter 1 Scope and Condition of Classification Section 4 Recognition of Risk Based Alternatives 1-4


5 Submittals (1 July 2012) As a minimum, the following documents are to be submitted to ABS for review and approval for classification purpose:

i) Proposed risk acceptance criteria

ii) Methodology for risk assessment

iii) Details of risk assessment

iv) Risk mitigation and/or management measures, wherever applicable

7 Risk Evaluation Methodology (1 July 2012) The risk assessment is to consider the installation in all anticipated operating modes.

The designer or owner is to apply a structured and systematic risk assessment process to identify all foreseeable incidents specific to his installation, making full consideration of the likelihood of occurrence of the incidents and their consequence.

ABS review and approval of the methodology selected by the designer or owner is required.

While various techniques/methods may be applied, the Owner is to justify the suitability and appropriateness of the particular method(s) selected. Some typical methods include:

i) Hazard and Operability Study (HAZOP)

ii) Failure Mode and Effects Analysis (FMEA)

iii) Failure Mode, Effects and Criticality Analysis (FMECA)

iv) Process Hazards Analysis (PHA)

v) Safety Reviews

vi) Checklists

vii) Experience from previous analyses

Where risk assessment techniques are used to cover only part of an installation, the designer or owner is to clearly define the boundary or extent of the item(s) being considered. The extent of the boundary is to subject to review and approval by ABS.

9 Identification of Hazards The Owner is to identify and consider all hazards that may affect his Installation or any part thereof. The Owner is to apply a systematic process to identify such situations where a combination or sequence of events could lead to an Incident, with consideration given to all foreseeable causes (initiating events).

The risk assessments are to consider, at a minimum, the following:

i) Fire and Explosion

ii) Hydrocarbon Release

iii) Blow-out

iv) Structural Failure

v) Loss of Stability

vi) Loss of Station Keeping /Mooring

vii) Loss of Electrical Power

viii) Toxicity

Chapter 1 Scope and Condition of Classification Section 4 Recognition of Risk Based Alternatives 1-4


ix) Extreme Weather

x) Environmental Factors.

xi) Dropped Objects

xii) Ship & Helicopter Collision

11 Other Requirements Where it is intended that risk-based techniques are used as a basis for compliance with Flag and Coastal State requirements, the owner is directed to contact the Administration, either directly or through ABS, to obtain an understanding as to the extent to which the Administration is prepared to consider alternatives to such requirements. The Administration may require additional hazards to be considered.


S e c t i o n 5 : S u b m i s s i o n o f P l a n s , D a t a a n d C a l c u l a t i o n s


S E C T I O N 5 Submission of Plans, Data, and Calculations

A generic list of plans and data to be submitted for facilities on floating installations is included in Chapter 3, Section 2.

A generic list of plans and data to be submitted for facilities on fixed installations is included in Chapter 4, Section 2.

It should be noted that due to the varying configurations of offshore facilities, all or portions of these requirements may be applicable to a given installation.


C h a p t e r 2 : D e f i n i t i o n s , R e f e r e n c e s , A c r o n y m s a n d A b b r e v i a t i o n s

C H A P T E R 2 Definitions, References, Acronyms and Abbreviations (1 July 2012)

CONTENTS SECTION 1 Definitions ............................................................................................. 12 SECTION 2 References ............................................................................................ 17

1 References ........................................................................................ 17 SECTION 3 Acronyms and Abbreviations ............................................................. 18

1 Acronyms and Abbreviations ............................................................ 18


S e c t i o n 1 : D e f i n i t i o n s

C H A P T E R 2 Definitions, References, Acronyms and Abbreviations

S E C T I O N 1 Definitions

The following definitions, references, abbreviations and acronyms are provided to clarify the use of terms in the context of these Rules.

Abnormal Condition A condition which occurs in a process system when an operating variable (flow, pressure, temperature, etc.) ranges outside of its normal operating limits.

Accommodation Spaces (Living Quarters)

Spaces used for public spaces, lavatories, cabins, offices, hospitals, cinemas, games and hobbies rooms, pantries containing no cooking appliances, and similar spaces.

Public Spaces are those portions of the accommodation which are used for halls, dining rooms, lounges and similar permanently enclosed spaces.

Classified Area A location in which flammable gases or vapors are or may be present in the air in quantities sufficient to produce explosive or ignitable mixtures (see the MODU Rules, API RP 500 or API RP 505 for additional details).

Closed Drains Rigid piping drains from process components, such as pressure vessels, piping, liquid relief valves etc., to a closed drain tank without any break to atmosphere.

Completed Wells Wells fitted with Christmas trees attached to the wellhead, such that the flow of fluids into and out of the reservoir may be controlled for production purposes.

Control Stations Spaces containing:

i) Radio or main navigation equipment

ii) Central Process Control Rooms

iii) Dynamical positioning control system

iv) Centralized ballast control station

v) Battery Room

vi) Fire recording or fire control equipment

vii) Fire-extinguishing system serving various locations

viii) Emergency source of power

ix) CO2 Bottle Room

x) Fire Pumps

Corridors Passageways, generally with rooms or compartments opening onto them. For the fire protection purposes, lobbies are considered parts of corridors.

Critical Equipment Refers to vessels, machinery, piping, alarms, interlocks, and controls determined by management to be vital in preventing the occurrence of a catastrophic release.

Divisions Divisions formed by bulkheads and decks which are constructed of steel or other equivalent material, suitably stiffened, and designed to withstand and prevent the passage of smoke and flame for the duration of the one-hour standard fire test. Divisions are classified as follows:

Chapter 2 Definitions, References, Acronyms and Abbreviations Section 1 Definitions 2-1


i) A Class Divisions Insulated with approved non-combustible materials such that the average temperature of the unexposed side will not rise more than 139C (282F) above the original temperature, nor will the temperature, at any one point, including any joint, rise more than 180C (356F) above the original temperature, within the time listed below:

Class A-60: 60 minutes




This division is to remain intact with the main structure of the vessel, and is to maintain its structural integrity after one (1) hour. Structural Integrity means that the structure will not fall under its own weight, nor will it crumble or break upon normal contact after exposure to the fire.

ii) B Class Divisions Divisions formed by bulkheads, decks, ceilings or linings which are designed to withstand and prevent the passage of flame for at least the first half hour of the standard fire test. They are to have an insulation value such that the average temperature of the unexposed side will not rise more than 139C (282F) above the original temperature, nor will the temperature at any one point, including any joint, rise more than 225C (437F) above the original temperature, within the time listed below:

Class B-15: 15 minutes

Class B-0: 0 minutes

B class divisions, unless specified in the design, are not required to be load bearing or maintain their structural integrity beyond 30 minutes of exposure. The only requirement outside of the design specification is to prevent the passage of flames for 30 minutes and maintain thermal requirements as described above.

iii) C Class Divisions D visions constructed of approved non-combustible materials. They need meet neither requirement relative to the passage of smoke and flame, nor limitations relative to the temperature rise. The only requirement is that they do not add to the fire.

iv) H Class Divisions Divisions formed by bulkheads and decks that are constructed of steel or other equivalent material, suitably stiffened, and are designed to withstand and prevent the passage of smoke and flame for the 120-minute duration of a hydrocarbon fire test. H class divisions are to be insulated so that the average temperature of the unexposed face will not increase by more than 139C (282F) any time during the two-hour hydrocarbon fire test, nor will the temperature, at any point on the face, including any joint, rise more than 180C (356F) above the initial temperature, within the time listed below:

Class H-120: 120 minutes



This division is to remain intact with the main structure of the vessel, and is to maintain its structural integrity after two (2) hours. Structural Integrity means that the structure will not fall under its own weight, nor will it crumble or break upon normal contact after exposure to the fire.

Escape Route This is a designated path used by personnel to evade an immediate danger and ultimately leads to a temporary refuge or muster station.

Explosive Mixture A vapor-air or gas-air mixture that is capable of being ignited by an ignition source that is at or above the ignition temperature of the vapor-air or gas-air mixture.

Fire Wall A wall designed and constructed to remain structurally intact under the effects of fire and insulated so that the temperature on the unexposed side will remain below a specified temperature for a determined amount of time.



Fired Vessel A vessel in which the temperature of the fluid is increased by the addition of heat supplied by a flame within the vessel. Specifically for hydrocarbon services, there are two (2) types of fired vessels:

i) Direct Fired Vessel A vessel in which the temperature of process hydrocarbon fluids is increased by the addition of heat supplied by a flame. The flame is applied directly to the fluid container. The combustion takes place in the heater.

ii) Indirect Fired Vessel A vessel in which the energy is transferred from an open flame or product of combustion (such as exhaust gases from turbines, engines, or boilers) to the hydrocarbon, through a heating medium, such as hot oil. The heating medium is usually non-combustible or has a high flash point. The combustion may, but does not necessarily, take place in the heater.

Fixed Installation A bottom-fixed offshore facility permanently affixed to the sea floor. The term includes, but is not limited to, fixed platforms, guyed towers, jack-ups, converted fixed installations, etc.

Flammable Fluid Any fluid, regardless of its flash point, capable of feeding a fire, is to be treated as Flammable Fluid. Aviation fuel, diesel fuel, hydraulic oil (oil based), lubricating oil, crude oil and hydrocarbon, are to be considered flammable fluids.

Flash Point The minimum temperature at which a combustible liquid gives off vapor in sufficient concentration to form an ignitable mixture with air near the surface of the liquid or within the vessel used, as determined by the test procedure and apparatus specified in NFPA 30. Ignitable Mixture means a mixture that is within the flammable range (between the upper and lower limits) and is therefore capable of propagation of flame away from the source of ignition.

Floating Installation An offshore facility designed to provide hydrocarbon processing and/or hydrocarbon storage, and offload hydrocarbons. The term Floating Installation is used to generically identify a buoyant facility that is site-specific. This installation is securely and substantially moored so that it cannot be moved without a special effort. The term includes, but not limited to Tension Leg Platforms (TLP), Spar Buoy, Permanently Moored Shipshape Hulls and Semisubmersibles.

Hydrocarbon Organic compounds of hydrogen and carbon, whose densities, boiling points, and freezing points increase as their molecular weights increase. Although composed of only two elements. Hydrocarbons exist in a variety of compounds because of the strong affinity of the carbon atom for other atoms and for itself. The smallest molecules of hydrocarbons are gaseous; the largest are solids. Petroleum is a mixture of many different hydrocarbons.

Hydrocarbon Fire Test A test in which specimens of the relevant bulkheads or decks are exposed, in a test furnace, to temperatures corresponding to the hydrocarbon fire time-temperature curve as defined by the U.K. Department of Energy/Norwegian Petroleum Directorate Interim Hydrocarbon Fire Resistance Test for Elements of Construction for Offshore Installations.

Hazardous Area See Classified Area.

High Integrity Pressure Protection System (HIPPS) An efficient option to replace a mechanical safety device; an example is a pressure safety valve, with instruments, valves and logic.

Ignition Temperature The minimum temperature required, at normal atmospheric pressure, to initiate the combustion of an ignitable mixture.

Inert Gas A gaseous mixture, such as flue gas, containing insufficient oxygen to support the combustion of hydrocarbons.

Interim Class Certificate A temporary representation to classification. The Interim Class Certificate is generally issued by the Surveyor attending commissioning of the facility and verification of compliance with these Rules. Issuance of an Interim Class Certificate is subject to the terms and conditions found therein.

Joiner Arrangement Construction details showing the combination of all structural fire protection materials. For example, a detail showing the connection of the ceilings to decks, ceilings to bulkheads, bulkheads to bulkheads, bulkhead construction details, deck construction details, etc.

Jumper Ducts Openings in bulkheads (usually in the top half) used for air balance or return air.

Lower Explosive Limit (L.E.L.) The lowest concentration of combustible vapors or gases, by volume in mixture with air, which can be ignited at ambient conditions.



Machinery Spaces of Category A are spaces, and trunks to such spaces, which contain:

i) Internal combustion engine(s) used for main propulsion; or

ii) Internal combustion engine(s) used for other purposes where such machinery has, in the aggregate, a total power, or combined rating of 375 kW (500 hp) or more; or

iii) Any oil-fired boiler or oil fuel unit

Manned Facility A facility with permanent occupied living accommodations or one that requires continuous presence of personnel for more than 12 hours in successive 24-hour periods.

Marine Support Systems For floating installations, those functions required for maintaining the normal operations of a vessel (or MODU), such as power generation, propulsion, navigation, HVAC, water treating, etc.

These functions are neither directly nor indirectly related to the hydrocarbon production and process systems.

Non-ducted Return Means of re-circulating conditioned air back to the air handler without the use of a dedicated duct.

Open Drains Gravity drains from sources which are at or near atmospheric pressure, such as open deck drains, drip pan drains, and rain gutters.

Operating Conditions A set of conditions (i.e., flowrates, compositions, temperatures and pressures) chosen for normal operation of a production facility at a particular point in the life of an oil or gas field.

Other Machinery Spaces (versus Machinery Spaces of Category A) All spaces, other than machinery spaces of Category A, containing machinery, boilers and other fired processes, oil fuel units, steam and internal combustion engines, generators and major electrical machinery, oil filling stations, refrigerating, stabilizing, ventilation and air-conditioning machinery and similar spaces; and trunks to such spaces.

Pad Gas Gas added to the vapor space of a vessel or tank to prevent an explosive or ignitable vapor-air mixture from forming.

Process Areas Areas where processing equipment is located. This includes wellhead/manifold areas.

Process Design Conditions A set of conditions used to design process components and systems.

Process Support Systems Utility and auxiliary systems that complement the hydrocarbon production and process systems. A typical list of such systems is included in Chapter 3, Section 4 and Chapter 4, Section 4. These systems do not directly handle hydrocarbons.

Produced Fluids Fluids coming out of completed wells, which may consist of oil, water, gas, and condensable vapor.

Production Facilities For the purpose of these Rules, Production Facilities are typically the processing, safety and control systems, utility and auxiliary equipment, for producing hydrocarbon liquid and gas mixtures from completed wells or other sources.

These facilities are generally inclusive from the inlet flange of the well fluid flowline above the water level to the point at which the departing pipeline enters the water. The facilities also include the safe disposal and/or collection of produced oil, gases and water.

For a floating installation with the storage and offloading capability to shuttle tanker, the production facility is terminated at the inlet flange discharge into the storage tank. The storage tank and offloading piping/electrical systems arrangement are considered marine systems.

Sanitary and Similar Spaces Communal sanitary facilities such as showers, baths, lavatories, etc., and isolated pantries containing no cooking appliances. Sanitary facilities which serve a space and with access only from that space are to be considered a portion of the space where they are located.

Service Spaces (Low Risk) Lockers, storerooms, and working spaces in which flammable materials are not stored, such as drying rooms and laundries.

Service Spaces (High Risk) Lockers, storerooms, and working spaces in which flammable materials are stored, such as galleys, pantries containing cooking appliances, paint rooms and workshops other than those forming part of the machinery space.



Severe Environment An environment in which regularly occurring conditions of wind, sea condition, ice, etc., would impede the orderly evacuation of an offshore facility.

Shut-in Condition A condition resulting from a shutting-in of the facility (See API RP 14C) caused by the occurrence of one or more undesirable events.

Shut-in Tubing Pressure (SITP) Pressure exerted by the well due to closing of the master valve.

Stairways Interior stairways, lifts and escalators (other than those wholly contained within the machinery spaces) and enclosures thereto. In this context, a stairway which is enclosed only at one level is to be regarded as part of the space from which it is not separated by a fire door. Stairways penetrating only one level are required to be enclosed in A class bulkheads at one level. If penetrating more than one level, the requirement is for complete enclosure at all levels.

Standard Fire Test A test in which specimens of the relevant bulkheads or decks are exposed in a test furnace to temperatures corresponding to the standard time-temperature curve and as defined by Annex 1 of Part 3 of the IMO Fire Test Procedures (FTP) Code.

Steel or Equivalent Material For any material or combination of materials to be considered as equivalent to steel, the following four requirements are to be met:

i) Non combustibility: The material is to be tested to the applicable section of the FTP Code, and approved as such.

ii) Integrity against the passage of flame of smoke: The material is to be tested to the IMO FTP A.754(18) standards, and approved as such.

iii) Smoke and Toxicity: The material is to be tested to the IMO FTP standard, and approved as such.

iv) Structural Integrity: Based on its area of use, whether required to be load bearing or maintaining integrity, the material is to perform similarly to steel in similar situations. (For example, if required to be A class, material is to remain stable after the standard fire test of one hour.)

Suitably Stiffened Stiffened according to requirements of the IMO FTP Code. When suitably stiffened, a bulkhead may be considered to be A class without having to be tested. If, however, a bulkhead is not stiffened according to the requirement of the IMO FTP Code, the bulkhead is to be tested.

Transient Condition A temporary and short-lived condition (such as a surge) that usually does not cause an upset condition.

Upset Condition A condition that occurs in a process component or system when an operating variable deviates substantially from its normal operating limits. If left unchecked, this condition can result in a threat to safety and may cause shutting-in of the process.

Ventilation Adequate Natural or artificial ventilation that is sufficient to prevent the accumulation of significant quantities of explosive mixtures in concentrations above 25% of their lower explosive limit (LEL).

Well Characteristics The conditions of a well or reservoir defined by depth, temperature, shut-in pressure, flow rate, well fluid composition, etc.

Well Fluid Properties The properties of a particular fluid stream defined by gas-oil ratio, flowing pressure and temperature, viscosity, density (API Gravity), composition, etc.


S e c t i o n 2 : R e f e r e n c e s


S E C T I O N 2 References

1 References In addition to the ABS Rules, and Guides as listed in 1-3/3, the additional requirements of the following Guides, codes or standards are referenced in these Rules:

ABS Guidance Notes on Review and Approval of Novel Concepts (Novel Concepts Guide) ABS Guide for Risk Evaluations for the Classification of Marine-Related Facilities ABS Guidance Notes on Risk Assessment Applications for the Marine and Offshore Oil and Gas Industries ABS Guide for Well Test Systems ABS Guide for Certification of Lifting Appliances ABS Guide for Surveys Using Risk-Based Inspections for the Offshore Industry (RBI Guide) ABS Guide for Surveys Based on Reliability-Centered Maintenance (RCM Guide) AISC American Institute of Steel Construction ANSI American National Standards Institute API American Petroleum Institute ASME American Society of Mechanical Engineers ASNT American Society for Nondestructive Testing ASTM American Society for Testing and Materials AWS American Welding Society ICEA Insulated Cable Engineers Association IEC International Electrotechnical Commission IEEE Institute of Electrical and Electronic Engineers IACS International Association of Classification Societies ISO International Organization for Standardization NACE National Association of Corrosion Engineers NEMA National Electrical Manufacturers Association NFPA National Fire Protection Association TEMA Tubular Exchangers Manufacturers Association ABS is prepared to consider other recognized codes, standards, alternative design methodology and industry practice, on a case-by-case basis, with justifications as indicated in Chapter 1, Section 4 of these Rules.


S e c t i o n 3 : A c r o n y m s a n d A b b r e v i a t i o n s


S E C T I O N 3 Acronyms and Abbreviations

1 Acronyms and Abbreviations The following acronyms and abbreviations are used in these Rules:

BPVC Boiler and Pressure Vessle Code

CoC Certificate of Conformity

ESD Emergency Shutdown FMEA Failure Modes and Effects Analysis

FMECA Failure Modes and Effects Criticality Analysis

H2S Hydrogen Sulfide HAZOP Hazard and Operability

HAZID Hazard Identification

HIPPS High Integrity Process Protection Systems ITP Inspection and Test Plans

LEL Lower Explosive Limits

LSL Level Safety Low MAC Manufacturers Affidavit of Compliance

MTR Material Test Report

NDE Nondestructive Examination P&ID Piping and Instrumentation Diagram

PSH Pressure Safety High

PSV Pressure Safety Valve PQR Procedure Qualification Records

RT Radiographic Examination

SAC Safety Analysis Checklist SAFE Safety Analysis Function Evaluation

SAT Safety Analysis Tables

SSV Surface Safety Valve USV Underwater Safety Valve

UT Ultrasonic Examination

UTS Ultimate Tensile Strength WPS Welding Procedure Specifications


C h a p t e r 3 : F l o a t i n g I n s t a l l a t i o n s

C H A P T E R 3 Floating Installations

CONTENTS SECTION 1 General .................................................................................................. 28

1 Scope ................................................................................................ 28 3 Applicability ....................................................................................... 28 5 Conditions of Classification ............................................................... 28 7 Design Considerations ...................................................................... 28

7.1 Recognized Standards .................................................................. 28 7.3 Alternative Basis of Design ............................................................ 29 7.5 Design Conditions ......................................................................... 29

SECTION 2 Design Plans and Data ......................................................................... 30

1 Submissions of Design Plans and Data ............................................ 30 3 Details ............................................................................................... 33 5 Facility Documentation ...................................................................... 33

5.1 Project Specifications .................................................................... 33 5.3 General Arrangement and Equipment Layout Drawings ............... 33 5.5 Area Classifications and Ventilation Drawings .............................. 33 5.7 Escape and Egress Route ............................................................. 33 5.9 Muster Locations ........................................................................... 33

7 Hydrocarbon Production and Process Systems ............................... 34 7.1 General.......................................................................................... 34 7.3 Process Flow Sheets ..................................................................... 34 7.5 Heat and Mass Balance ................................................................ 34 7.7 Piping and Instrument Diagrams (P & ID's) ................................... 34 7.9 Safety Analysis Function Evaluation (S.A.F.E.) Charts and

Cause and Effect Matrix ................................................................ 35 7.11 Packaged Process Units ............................................................... 35 7.13 Process Equipment Documentation .............................................. 35 7.15 Process Piping Specifications ....................................................... 37 7.17 Pressure Relief and Depressurization Systems ............................ 37 7.19 Flare and Vent System .................................................................. 38 7.21 Spill Containment, Closed and Open Drain Systems .................... 38 7.23 Subsea Production Systems (Optional) ......................................... 38

9 Process Support Systems ................................................................. 38 9.1 Piping and Instrument Diagrams (P & ID's) ................................... 39 9.3 Equipment Documentation ............................................................ 39 9.5 Piping Specifications ..................................................................... 39 9.7 Internal-Combustion Engines and Turbines .................................. 39 9.9 Cranes (Optional) .......................................................................... 39

11 Marine Support Systems ................................................................... 39


13 Electrical Systems ............................................................................. 40 13.1 Electrical One-Line Diagrams ........................................................ 40 13.3 Short-circuit Current Calculations .................................................. 40 13.5 Coordination Study ........................................................................ 40 13.7 Specifications and Data Sheets for Generators and Motors .......... 40 13.9 Specifications and Data Sheets for Distribution Transformers ....... 41 13.11 Details of Storage Batteries ........................................................... 41 13.13 Details of Emergency Power Source ............................................. 41 13.15 Standard Details of Wiring Cable and Conduit Installation

Practices ........................................................................................ 41 13.17 Switchboard, Distribution Boards and Motor Control Centers ........ 41 13.19 Panelboard .................................................................................... 42 13.21 Installations in Classified Areas ..................................................... 42

15 Instrumentation and Control Systems ............................................... 43 15.1 General Arrangements .................................................................. 43 15.3 Instrumentation List ....................................................................... 43 15.5 Schematic Drawings Electrical Systems ..................................... 43 15.7 Schematic Drawings Hydraulic and Pneumatic Systems ............ 43 15.9 Programmable Electronic Systems ................................................ 43

17 Fire Protection and Personnel Safety ............................................... 43 17.1 Firewater System ........................................................................... 43 17.3 Deluge Systems (Water Spray for Process Equipment) ................ 44 17.5 Foam Systems (for Crude Storage Tanks) .................................... 44 17.7 Fixed Fire Extinguishing Systems .................................................. 44 17.9 Paint Lockers and Flammable Material Storerooms ...................... 44 17.11 Fire Control and Life Saving Equipment Plan ................................ 44 17.13 Fire and Gas Detection and Alarm Systems .................................. 45 17.15 Fire and Gas Cause and Effect Chart ............................................ 45 17.17 Insulation of Hot Surfaces .............................................................. 45

19 Arrangements for Storage Tank Venting and Inerting ...................... 45 21 Arrangements for Use of Produced Gas as Fuel .............................. 45 23 Start-up and Commissioning Procedures and Manual ..................... 45 25 Modifications ..................................................................................... 45 TABLE 1 Design Plans and Data Submission Requirements ................ 30 TABLE 2 Major Equipment Plans/Calculations and Technical

Documentation for Class Requirements ................................. 36 SECTION 3 Hydrocarbon Production and Process Systems ............................... 46

1 General ............................................................................................. 46 1.1 Scope ............................................................................................ 46 1.3 Process Safety Principle ................................................................ 46 1.5 Governmental Regulations ............................................................ 46

3 Process Design ................................................................................. 46 3.1 Design Basis .................................................................................. 46 3.3 Process Design Conditions ............................................................ 46 3.5 Process Flow Sheets ..................................................................... 47


5 Facility Layout ................................................................................... 47 5.1 General Arrangement .................................................................... 47 5.3 Accommodation Spaces (Living Quarters) .................................... 48 5.5 Emergency Shutdown (ESD) Stations ........................................... 48 5.7 Wellhead Areas ............................................................................. 49 5.9 Storage Tanks and Slop Tanks ..................................................... 49 5.11 Fired Vessels ................................................................................. 49

7 Packaged Process Units ................................................................... 49 7.1 General.......................................................................................... 49 7.3 Skid Structures .............................................................................. 49 7.5 Drip Pans ....................................................................................... 50

9 Major Equipment Requirements ....................................................... 50 9.1 Process Vessels ............................................................................ 50 9.3 Process Heat Exchangers ............................................................. 50 9.5 Process Electric Heater ................................................................. 51 9.7 Fired Vessels (Heaters) ................................................................. 51 9.9 Atmospheric Storage Tanks .......................................................... 52 9.11 Compressors ................................................................................. 52 9.13 Pumps ........................................................................................... 53 9.15 Scraper Launchers/Receivers ....................................................... 53 9.17 Flare and Vent Structures .............................................................. 53

11 Process Piping Systems ................................................................... 53 11.1 General.......................................................................................... 53 11.3 Thermal Relief ............................................................................... 53 11.5 Isolation Valves ............................................................................. 53 11.7 Flexible Hoses ............................................................................... 54 11.9 Plastic Pipe Installations ................................................................ 54

13 Piping and Instrumentation Design ................................................... 55 13.1 Process Control System ................................................................ 55 13.3 Safety System ............................................................................... 55

15 Pressure Relieving and Hydrocarbon Disposal Systems ................. 56 15.1 Pressure Relief Systems ............................................................... 56 15.3 Pressure/Vacuum Venting System for Atmospheric and Low

Pressure Storage Tanks ................................................................ 57 15.5 Flares and Vents ........................................................................... 57

17 Spill Containment, Open and Closed Drain Systems ....................... 59 17.1 Spill Containment .......................................................................... 59 17.3 Open Drain Piping ......................................................................... 59 17.5 Sealing of Open Drains ................................................................. 60 17.7 Segregation of Open Drain Systems ............................................. 60 17.9 Closed Drain Systems ................................................................... 61 17.11 Overboard Discharges from the Production Treatment Plan ......... 61

19 Structural Modules ............................................................................ 61 19.1 General.......................................................................................... 61 19.3 Structural Design of Deck Modules and Supports ......................... 61


21 Subsea Production ............................................................................ 62 21.1 General .......................................................................................... 62 21.3 Flowlines and Manifolds ................................................................ 62 21.5 Wellheads and Subsea Equipment ................................................ 62

TABLE 1 Fuel and Ignition Sources ....................................................... 48 FIGURE 1 Typical FRP/GRP Arrangement in a Process Piping

Layout ..................................................................................... 54 SECTION 4 Process Support Systems ................................................................... 63

1 General ............................................................................................. 63 3 Equipment Requirements ................................................................. 63

3.1 Pressure Vessels ........................................................................... 63 3.3 Heat Exchangers ........................................................................... 63 3.5 Pumps ........................................................................................... 63 3.7 Compressors ................................................................................. 64 3.9 Prime Movers (Internal Combustion Engines and Turbines) ......... 64 3.11 Cranes (Optional) .......................................................................... 65

5 System Requirements ....................................................................... 66 5.1 Utility/Instrument Air System .......................................................... 66 5.3 Fuel/Instrument Gas System ......................................................... 66 5.5 Segregation of Piping Systems ...................................................... 66 5.7 Use of Produced Gas as Fuel ........................................................ 66 5.9 Purging System for Process Equipment ........................................ 67 5.11 Fuel Oil System ............................................................................. 67 5.13 Hydraulic System ........................................................................... 68 5.15 Lubricating Oil System ................................................................... 68 5.17 Chemical Injection System ............................................................ 69 5.19 Heating and Cooling Systems ....................................................... 69 5.21 Sodium Hypochlorite Solution Storage .......................................... 69 5.23 Control of Static Electricity ............................................................. 70

7 Drilling Systems ................................................................................ 70 SECTION 5 Marine Support Systems ..................................................................... 71

1 General ............................................................................................. 71 3 Equipment Requirements ................................................................. 71

3.1 Pressure Vessels ........................................................................... 71 3.3 Heat Exchangers ........................................................................... 71

5 System Requirements ....................................................................... 71 5.1 Pipe System Interconnections ....................................................... 71 5.3 Oil Storage Tank Purging and Blanketing Systems ....................... 72 5.5 Oil Storage Tanks Venting System ................................................ 72 5.7 Use of Produced Gas as Fuel ........................................................ 72 5.9 Flammable Liquid Storage Facility Arrangement ........................... 72


SECTION 6 Electrical Systems ............................................................................... 74 1 Applicability ....................................................................................... 74 3 General ............................................................................................. 74 5 Design Considerations ...................................................................... 74

5.1 Equipment and Enclosures ............................................................ 74 5.3 Selection of Materials .................................................................... 74 5.5 Equipment Grounding (Earthing) Arrangements ........................... 74 5.7 System Grounding (Earthing) ........................................................ 75 5.9 Distribution and Circuit Protection ................................................. 75

7 Rotating Electrical Machinery ........................................................... 75 7.1 General.......................................................................................... 75 7.3 Temperature Rating ...................................................................... 75 7.5 Moisture Condensation Protection ................................................ 76 7.7 Temperature Detection .................................................................. 76

9 Transformers ..................................................................................... 76 9.1 General.......................................................................................... 76 9.3 Transformer Supplying Services Other than Oil or Gas

Production ..................................................................................... 76 11 Switchgear ........................................................................................ 76

11.1 Application ..................................................................................... 76 11.3 Construction, Assembly and Components ..................................... 76 11.5 Switchboards ................................................................................. 78 11.7 Motor Controllers ........................................................................... 78 11.9 Battery Charging Panels................................................................ 79 11.11 Switchgear Supplying Services Other than Oil and Gas

Production ..................................................................................... 79 13 Wire and Cable Construction ............................................................ 79

13.1 General.......................................................................................... 79 13.3 Conductor Type ............................................................................. 79 13.5 Insulation ....................................................................................... 79 13.7 Cable Flame Retardancy ............................................................... 80 13.9 Fire Resistant Property .................................................................. 80

15 Hazardous Areas .............................................................................. 80 15.1 General.......................................................................................... 80 15.3 Electrical Installations in Hazardous Areas.................................... 80 15.5 Area Classifications and Electrical Installations ............................. 80 15.7 Wiring Methods in Hazardous Areas ............................................. 81

17 Ventilation ......................................................................................... 81 17.1 General.......................................................................................... 81 17.3 Ventilation of Enclosed Classified Spaces..................................... 81 17.5 Ventilation of Non-classified Spaces ............................................. 81 17.7 Emergency Shutdown ................................................................... 82

19 Cable Support and Installation .......................................................... 82 19.1 Mechanical Protection ................................................................... 82 19.3 Splicing .......................................................................................... 82

21 Power Source Requirements ............................................................ 82 21.1 Unmanned Facilities ...................................................................... 83 21.3 Manned Facilities .......................................................................... 83


23 Emergency Source of Power ............................................................ 83 25 Battery Systems ................................................................................ 84 27 Short Circuit Current Calculations and Coordination Study .............. 84

27.1 General .......................................................................................... 84 27.3 Short Circuit Capacity .................................................................... 84 27.5 Coordination .................................................................................. 84

29 Protection from Ignition by Static Charges ....................................... 84 TABLE 1A Degree of Protection (Indicated by the First

Characteristic Numeral) .......................................................... 85 TABLE 1B Degree of Protection (Indicated by the Second

Characteristic Numeral) .......................................................... 86 TABLE 1C NEMA Enclosures ................................................................... 87 TABLE 2 Size of Ground (Earth)-continuity Conductors and

Grounding (Earthing) Connections ......................................... 89 TABLE 3 Clearance and Creepage Distance for Switchboards,

Distribution Boards, Chargers, Motor Control Centers and Controllers ........................................................................ 90

SECTION 7 Instrumentation and Control Systems ................................................ 91

1 Applicability ....................................................................................... 91 1.1 General .......................................................................................... 91 1.3 Installation ..................................................................................... 91

3 Components ...................................................................................... 92 3.1 Environmental Considerations ....................................................... 92 3.3 Suitability of Computer Based Equipment ..................................... 92 3.5 Electrical Variations ....................................................................... 92 3.7 Loss of Power ................................................................................ 92

5 Instruments ....................................................................................... 92 5.1 Temperature .................................................................................. 92 5.3 Pressure ........................................................................................ 92 5.5 Level .............................................................................................. 93

7 Alarm Systems .................................................................................. 93 7.1 Characteristics ............................................................................... 93 7.3 Independence ................................................................................ 93 7.5 Visual and Audible Alarms ............................................................. 93 7.7 Acknowledgement of Alarms ......................................................... 93 7.9 Disconnection and Resumption of Alarm Functions ...................... 94 7.11 Summary Alarms ........................................................................... 94 7.13 Built-in Testing ............................................................................... 94 7.15 Adjustable Set-points ..................................................................... 94

9 Control and Monitoring ...................................................................... 94 9.1 General .......................................................................................... 94 9.3 Loss of Signal ................................................................................ 94 9.5 Display of Parameters ................................................................... 94 9.7 Logic Circuit Features .................................................................... 94 9.9 Overrides ....................................................................................... 95


11 Safety Systems ................................................................................. 95 11.1 General.......................................................................................... 95 11.3 Independence ................................................................................ 95 11.5 Activation ....................................................................................... 95 11.7 Resumption of Operation............................................................... 95 11.9 Override of Safety Provisions ........................................................ 96 11.11 Adjustable Set-points .................................................................... 96

13 Shutdown Systems ........................................................................... 96 13.1 General.......................................................................................... 96 13.3 Safety Analysis .............................................................................. 96 13.5 Emergency Shutdown ................................................................... 96

15 Computer-based Systems for Alarm, Control and Safety Systems ............................................................................................ 97 15.1 General.......................................................................................... 97 15.3 Independence ................................................................................ 97 15.5 Failure Mode and Effect Analysis (FMEA)/Failure Mode, Effect

and Criticality Analysis (FMECA) ................................................... 97 15.7 Visual Display of Alarms ................................................................ 97 15.9 Memory Capacity and Response Time ......................................... 97 15.11 Data Loss and Corruption .............................................................. 97 15.13 Local Area Network (LAN) ............................................................. 98 15.15 Power Supply Disruption ............................................................... 98 15.17 Parameters and Program Changes ............................................... 98 15.19 Multiple Points of Control ............................................................... 98

17 Relief Valves ..................................................................................... 98 17.1 General.......................................................................................... 98 17.3 Provisions for Testing .................................................................... 98 17.5 Block Valve Locking Devices ......................................................... 98

19 Shutdown Valves, Blowdown Valves and Diverter Valves ............... 99 TABLE 1 Electrical Variations ................................................................ 92

SECTION 8 Fire Protection and Personnel Safety ............................................... 100

1 Applicability ..................................................................................... 100 3 General ........................................................................................... 100

3.1 Scope .......................................................................................... 100 3.3 Governmental Authority ............................................................... 100

5 Fire Fighting Systems ..................................................................... 100 5.1 Firewater Systems ....................................................................... 100 5.3 Dry Chemical Systems ................................................................ 110 5.5 Fixed Fire Extinguishing Systems ............................................... 110 5.7 Paint Lockers and Flammable Materials Storerooms .................. 112 5.9 Helicopter Facilities ..................................................................... 112 5.11 Emergency Control Station .......................................................... 112 5.13 Operation after Facility Total Shutdown ...................................... 112 5.15 Portable and Semi-portable Extinguishers .................................. 113


7 Fire and Gas Detection and Alarm Systems ................................... 115 7.1 Fire Detectors .............................................................................. 115 7.3 Gas Detectors .............................................................................. 116 7.5 Smoke Detectors ......................................................................... 116 7.7 Alarm Panel ................................................................................. 116 7.9 Fire and Gas Detection Wiring ..................................................... 116 7.11 General Alarm ............................................................................. 116

9 Structural Fire Protection ................................................................ 116 9.1 General ........................................................................................ 116 9.3 Structural Fire Protection Requirements ...................................... 117 9.5 Wellhead Areas ........................................................................... 119 9.7 Fired Vessels ............................................................................... 119 9.9 Helideck ....................................................................................... 119 9.11 Ventilation .................................................................................... 119 9.13 Penetrations ................................................................................ 119 9.15 Materials/Certification .................................................................. 119

11 Muster Areas ................................................................................... 120 11.1 General ........................................................................................ 120 11.3 Materials ...................................................................................... 120 11.5 Muster Stations ............................................................................ 120

13 Means of Escape ............................................................................ 120 13.1 General ........................................................................................ 120 13.3 Materials ...................................................................................... 120 13.5 Escape Routes ............................................................................ 120 13.7 Marking and Lighting of Escape Routes ...................................... 120 13.9 Escape Route Plan ...................................................................... 120

15 Lifesaving Requirements ................................................................ 121 15.1 General ........................................................................................ 121 15.3 Lifeboat Embarkation Areas ........................................................ 121 15.5 Lifesaving Appliances and Equipment ......................................... 121 15.7 Means of Embarkation ................................................................. 122

17 Personnel Safety Equipment and Safety Measures ....................... 122 17.1 Firemans Outfits.......................................................................... 122 17.3 Guard Rails .................................................................................. 123 17.5 Insulation of Hot Surfaces ............................................................ 123

TABLE 1 Portable and Semi-portable Extinguishers ........................... 113 TABLE 2 Classification and Placement of Portable and

Semi-portable Extinguishers ................................................. 114 TABLE 3A Fire Integrity of Bulkheads Separating Adjacent

Spaces/Areas ........................................................................ 117 TABLE 3B Fire Integrity of Decks Separating Adjacent

Spaces/Areas ........................................................................ 118 FIGURE 1 Floating Installation Fire Pump Arrangement

Two-Pump Scenario.............................................................. 103 FIGURE 2 Floating Installation Fire Pump Arrangement

Multiple-pump (Even Power) Scenario ................................. 103


FIGURE 3 Floating Installation Fire Pump Arrangement Multiple-pump (Uneven Power) Scenario ............................. 104

FIGURE 4 Floating Installation Fire Pump Arrangement Multiple-pump Scenario for Oil Carrier Converted to Offshore Installation ........................................ 105

FIGURE 5A Typical Fire Zones Arrangement on a Production Deck of a FPSO Single Fire with A-60 Fire Wall ............................ 105

FIGURE 5B Typical Fire Zones Arrangement on a Production Deck of a FPSO Single Fire with an Adjacent Zone that has no Liquid Inventory ................................................................ 106


S e c t i o n 1 : G e n e r a l


S E C T I O N 1 General

1 Scope (1 July 2012) This Chapter defines the minimum criteria for ABS Class applicable to hydrocarbon production and processing systems, subsystems and equipment on floating installations. See 1-2/1 of these Rules for Scope and Conditions of Classification.

Terms, definitions, references, abbreviations and acronyms, used in this Chapter are defined in Chapter 2.

3 Applicability The requirements described in this chapter are applicable to facilities on floating installations of various configurations that provide hydrocarbon production and processing services. These services may include:

Well fluid de-pressurization

Phase separation

Fluid cleaning, treatment and stabilization

Dehydration

Compression

Reinjection

Transfer

Storage

Metering

Off-loading of processed hydrocarbon

5 Conditions of Classification Refer to the ABS Rules for Conditions of Classification Offshore Units and Structures (Part 1) and Chapter 1 of these Rules for information on Classification.

7 Design Considerations (1 July 2012)

7.1 Recognized Standards The submitted design is to be in accordance with the requirements of the Rules and the specified codes and/or standards as referenced herein.

i) Designs complying with other international or national standards not listed in Appendix 4 will be subject to special consideration in accordance with Chapter 1, Section 4 of these Rules.

ii) ABS advises the designer/manufacturer to contact the ABS Technical office early in the design phase for acceptance of alternate design codes and/or standards.

iii) When alternate design codes and/or standards are proposed, justifications can be achieved through equivalency, gap analysis or appropriate risk analysis/philosophy to demonstrate that the proposed alternate design code and standard will provide an equivalent level of safety to the recognized standards as listed in Appendix 4 and are required to be performed in accordance with Chapter 1, Section 4 of these Rules.

Chapter 3 Floating Installations Section 1 General 3-1


7.3 Alternative Basis of Design Designs based on manufacturers standards may also be accepted. In such cases, complete details of the manufacturers standard and engineering justification are to be submitted for review.

i) The manufacturer will be required to demonstrate by way of testing or analysis that the design criteria employed results in a level of safety consistent with that of a recognized standard or code of practice.

ii) Where strain gauge testing, fracture analysis, proof testing or similar procedures form a part of the manufacturers design criteria, the procedure and results are to be submitted for ABS review.

iii) Historical performance data for production or process systems, subsystems, equipment or components is to be submitted for justification of designs based on manufacturers standards.

iv) ABS will consider the application of risk evaluations for alternative or novel features for the basis of design in accordance with Chapter 1, Section 4 of these Rules, as applicable.

7.5 Design Conditions The production and process systems, subsystems, equipment, and/or components are to be designed to account for all applicable environmental, operational, and test loads, or combination thereof. These include, but are not limited to, the following:

i) Environmental Conditions, as applicable

Earthquake

Ice

Current, waves

Wind

Temperature

1, 10, 50, 100 year storm event, as applicable

ii) Operational

Static pressure

Transient pressure excursion

Temperature excursion

Fluid static head and properties

Tension

Bending

Vibration

Acceleration loads due to movement of installation

iii) Transportation

iv) Installation

v) Commissioning

vi) Test Loads


S e c t i o n 2 : D e s i g n P l a n s a n d D a t a


S E C T I O N 2 Design Plans and Data

1 Submissions of

fac rules e-mar13

Documents

classification of facilities

t i o n s rules

floating installations

corrigendaeditorials

offshore installations

fixed installations

s s i n g f

classing facilities